Naphthalene analogue and preparation method thereof from ranunculus davidii

A technology of analogues and ranunculus, applied in the field of preparation of naphthalene analogues in ranunculus thorns

Active Publication Date: 2021-02-12
NINGBO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there are few relevant studies on the chemical constituents of Buttercup thorn. In the prior art, many natural products such as tannin and saponin can be isolated from Buttercup thorn Glycosides, flavonoids, polyphenols, alkaloids, anthocyanins, cardiac glycosides, phytosterols, coumarins and diterpenes, etc.

Method used

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  • Naphthalene analogue and preparation method thereof from ranunculus davidii
  • Naphthalene analogue and preparation method thereof from ranunculus davidii
  • Naphthalene analogue and preparation method thereof from ranunculus davidii

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preparation example Construction

[0032] In a second aspect, the present invention provides a method for preparing the naphthalene analog from buttercup thorn, comprising the following steps:

[0033] Pulverize Buttercup thorn, extract with ethanol, and concentrate the extract to obtain the total extract;

[0034] The total extract was separated by silica gel column chromatography, and gradient elution was carried out by petroleum ether-ethyl acetate system;

[0035] The obtained second component was repeatedly chromatographed on silica gel in a petroleum ether-ethyl acetate system to obtain the naphthalene analogue;

[0036] The volume ratio of petroleum ether and ethyl acetate in the petroleum ether-ethyl acetate system is 1.2:8.8.

[0037] In some embodiments, the crushed Buttercup thorn has a particle size of 20-40 mesh.

[0038] In some embodiments, the crushed Buttercup thorn has a particle size of 30-40 mesh.

[0039] In some embodiments, 2-5L of absolute ethanol is used for extraction per kilogram o...

Embodiment

[0045] Materials and Methods

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Abstract

The invention discloses a naphthalene analogue and a preparation method of the naphthalene analogue from ranunculus davidii. The structural formula of the naphthalene analogue is shown in the specification, the naphthalene analogue is discovered and separated from ranunculus davidii for the first time by an inventor, and tests show that the naphthalene analogue has better antibacterial and antioxidant activity.

Description

technical field [0001] The invention belongs to the technical field of preparation of naphthalene analogs in ranunculus thorns, and in particular relates to a naphthalene analog and a preparation method thereof from ranunculus thorns. Background technique [0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0003] Buttercup thorn is named for its prickly fruit and cup-shaped dark yellow flowers. This plant is widely found in Asia, Australia, South America and Europe, and is distributed in Jiangsu, Zhejiang and Guangxi in my country. In traditional medicine, buttercup thorn is used to treat coughs, asthma, dysentery, jaundice, diarrhea, eczema, urinary tract infections, leprosy, and ringworm infections. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C43/20C07C41/34C07C41/36C07C41/38A61P31/04A61P39/06
CPCC07C43/202C07C41/34C07C41/36C07C41/38A61P31/04A61P39/06Y02A50/30
Inventor 张进杰张浩崔莉吕翠张宇王岱杰
Owner NINGBO UNIV
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